Finding the Fourth Proportional to 139,219.32, 208,782.17 and 50,454.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,219.32 : 208,782.17 = 50,454.24 : x
2. Step 2: Convert to fraction form
   139,219.32/208,782.17 = 50,454.24/x
3. Step 3: Cross multiply
   139,219.32x = 208,782.17 × 50,454.24
4. Step 4: Simplify right side
   139,219.32x = 10,533,944,668.99
5. Step 5: Solve for x
   x = 10,533,944,668.99/139,219.32
6. Step 6: Final answer
   x = 75,664.39